Panel-board



Sai

H;F.STARRETT.

PANEL BOARD.. APPLICATION FRED OCT- 27'. 1.91.A

Patented Nov. 11, 1919.

To alliulwm t mayconcem." y

Bce-Uit lrnoivn that I, lrlnNur F. S'rAnnE'rn n titizenoli the United States, residing nt Chicftgo,' in the county of Cook and Stute of Il`l'inois, have invented new and useful Improvements Ain Panel-Boards, of which the follmvingis a full, clear, concise, and eilclilescription, reference llening,` had to the lice'nipunyingA drawing, of this specification.

Mv nvention relates to improvements in lgc' lsg". und.' perticularly.- ,to pzrnel boards "for liglitig und' power circuits. i Qiiebfthe' ohjects'of my invention is to projjide panel board constructed from n J' of unit-s, i-Whereby large-sized panel s tnndnrd units, which .units muy be lfgemove'd frein place after assemblage fon-"athefpurpose of change, repair, etc., @mit out disturbing the electrical connectionsjfofethe .remaining units of the hoard :1.nd-..\v.ithout disturbing or displacing the busfbzirs; Further objects of the invention i will appear more fully in the nccmnpunying flspecifcation and drawings, For' the purpose of disclosing my `inven tion, I haveillustrntecl inthe acconipnnying drawingsyFigure l .is- :tplnn view of a penel hoard embodying my invention; f 'FiggfQ is a sectional View taken on the line 2'-2 o'flig. lilookin'g in the direction of :the arrows; 1 y 3'is e perspective view of the essernly" iframe of -my hoard. together with an insulating frame mounted tluereon.;4 40 I liig 4 is' a. fragmentary I enlarged, sec- :f... gtional' vlew taken ori-the line 2-2 ot Fig. 1 showing the method employed' -for support `theunain bus-barsj' -30ydrawings one v emboliine'nl thereof. In seid 45. nillllstrating yin detil -the 6A 's creer View 'of 'the cover-.plete .onw ich the socketsre xn'ounted, and illus trates the recesses 'oi channels therein which accommodate thefnmuf 'bus-bars:

compenym'g drawingsf Tprvid :in ass'em bly frame l. formed of the two top and bottom. members a?, the two side menmers 3 and the twc intermediate members 4. These '1, neo", riz-truisessreuon 'n cour-mfg, .or enfonce; Immers, A feonrorlewrcn er :L

u ,Lecication of Letters Patent.

forming a parts'ef in connection with l elec-tric 4. form-led, usinzffgA in th@ C-Oll-xA .forni terminals; I L 1 'fnceoitliefunitlinthe/embed ment.,illustrntedimjthe en l Application-inea october 27,1916.- seria: Nelesls.

members preferably;- areV formed'O-f cherlnel iron und ure all bclt`ed orrivetjed together to form e. rectangularassembling zinchsup-y porting frame 1 `for tl1e-board.ff e The board. is formed of' {plurelityFofGO sections or units 5.' In the embodiment illustrated, cach. unit comprises a base .5% or' insulating materia-l' -lmving formed V`in the'. front face thereofru central orlongitudi- J ot the cover plete. are Vsuitablet,recessesger channels 6' for v'thea sul);b1isbe "7; which sub-bushels have suitablecross extensions 7 to make proper electrical connections 75 The cross extensions' are ins1'1l: itetl,frln` the main bus-hers by suitable insulating plates, suc-h es 7b, luid inrecses'or,channels, such 7"', which are Wider and not es deepl ns the recesses Ga; (See Fig. 6,).1 The recesses 80 "I" are of such dep'tlrthat when the insulators 7b ure laid therein and interposed between the cross extensions andthe main bushur, the exterior surface of the mninbusbars will lie in substantially the seme-plane as the ,baci surface of the coverplete 6. The front feceotv 'the platel 6 is provided with suitable openings andthe sub e bus-bars l and the orosei connectors. have tapped therein Suit-ble-holes S-r'evis- 90 tering with the,l openings inthe cover pllte. to receive the securing screws ofthe-fuse receptacles 9 mounted on the frontfuce of the unit as clenrly'illustrnted and described.

in my Patent No. 1294185 issued Feb. A11. 1919 and entitled Panelrlboard :ind lpanel hoardconstruction.v Innd'd'ition tothe fuse receptacles there are1 also provided.- suitable switches 1Q, ivhichsWitches areii-nterposed hetween the fuse receptacles andthe brunch Wirey terminals "1 1f The-s u'b-lius-bursI 7 'at one end ere turned up through'fopenings" 11 m the .gever --piel mtime. constructed to gerst "o'r"'tlesi`tle and intermediate" ers of 'tlm-hmmm, resting thereon' and" nrc s aced `:tpm-t .by Ineens of spacerhars 13, w1ich spacer bars 11.0

.. ..insulatingfspacertube 20 whic acts as an f the spacers and connected with the branch.-

.5 Wire terminals 11 -.on the units. The ends oli-terminals l2 of the subLbus-bars are connected by removable connections inthe form -of'screws 15 with bus-liar connectors 16,' which connectorsextend from the bus-,bars 17 mounted on the assemb y frame. In' the" resent instance; the boar isa three-wire ard,.-and there are, the efore,.providcd1 .of course,- three bus-bars.' These bus-bars v. are nlfiunted one above the other and are securedin-po'sition to the frareeat the upper andlower end of the panel 'y means of a bolt 18. This bolt is surrou ded by an insulat' "tube 19 (see Figs. l and 5-). Betweeliliie to member 2 oft e'framevand the bottom "us-bar there is inserted van insulating `support for this bus-bar.` Be'- tiveen' the bottom bus-bar andt e next succeeding bus-bar a similar' but vhorter -insulating tube' spacer'21'is r erted which serveslasa support for this Ls-bar. The '.tp'busfbar" and" tbe middle bus-bar are likewise separated by an insulating tube spacer 2L andthe nut 22 nfthe top of the so boltris suitably -insulated byan insulating washer .22"'from the. top b usibar. Thev upper end'ofthe'bolt 11B-is threaded ltoreceve the nut 22, the bolt and nut serving to hold '.the`bus-ba'rs fand intermediate insulating spacers in,position. #The lovver ends of the '.'same-manner.- The boltfl8for su porting the'bus-bar in this casev 'is mounts vupon a 'cross piece'r23, which. maybe made, if desired,f of 'insulating materials-#screwed or oth'erivis'e-securedto the intermediate mem;

. bers-L Vlt-i's thus'seen that the bus-bars are '-mountedfon the' asseinbly v-frarne wholly independent' ofthe panel-board units.

.4 5 1 Ir'nthestructure illustrated, there are 'prof y. vided 'of three' units each;

foil. vcb

ed'f'uit. bolts seemed' ttt 1ct en -infrinjan ,bus-bars' are supported in substantially the bus-bars.

the unit from,thebusba r connections, lby

- removing l thef screws15,lrend ers .that parf g .am 11-1211; waist it nuts 30.. The side members of the insulnt- I ing frame are provided with suitable notches 31 for. the accommodation 'of the bus-bar connectors `These connectors 16, as .will be noted, are preferably U-shaped, as 'shown in Figs. 2 ande, and, -as heretofore *explainedfare removably connected to the terh minals of theunits by means of the screws l5. The frames surrounding each set of units form "betweenvthem a' bus-bar gutter, 75 and.. when the assembled board is placed' in the cabinet-32 the units, as will be notedA i .in Figs. 2 and '.4,v are sufficiently spaced apart rfrom the bottom of they cabinetV to form a suitable' Vwiring pocket 33 between 4the bottom of the ,cabinet and the bottom ofthe units to accommodate the various branch or consumption circuit wires. Like- Wise between the sides and. tops of the cabinets andthe insulating -frame are formed 85 wiring gutters 3411er the accommodation of branch or consumption-'circuit wires.

By the above, construction it will be noted. that the unitsof the panel board are only held in position' by vtheir snugnes's'of fit in the frames and by theirvconnections with the bus-bars. It will also be notedlthat .in Y event it is desired to remove any one of the units `for th'e purpose of substitution, repair, etc. .it is merely necessary to discon- Q nect-the ranch circuit wire connections forv .tha-tparticular unit, and' nlso yto disconnect the unit from the bus-'bar connections by removing `-the screws 1 5, thereby absolutely freeing Athe unit so that it may be lifted out 'of position without tuble, without dis?. turbngr the electrical connectionsof the remainilrg units and Without' displacing or disturbing the electrical connections of the yIt will also' be` noted 4 that in making a removal -of thischaracter, the disconnect- 111g of the terminals -of the silbsbu. rs of tion-of the :branch wires may proceeded* with .-Without 'danger to= the" operator.

It-'yvill also be notedfthat leach unit the panel-boardin itself comprises a sub- '1- While I- fhave shfwmf 'llustratcdand'fdel .panellboa'rd formed. of albusc, a: cover.- a

l'pluralitybf. subfbranchf'ibars ,h ld

a yfluit that, 1f 13,0

desired, a di tiere-nt form of unit may be used in thisspace. Obviously, any type of circuit-controlling apparatus could be used on the standard 'supporting nuits assembled to form the built-up panel-board, and my in-` -what I claim as new and desire to secure by Letters Patent, is:

l. The combination with a Cabinet, of4 a panel board mounted therein comprisingv an assembly frame, 'a plurality of panel board sections, a plurality of panel board units inl each sect-ion carrying suitable elec tric equipment mounted upon said fra-me and spaced apart by said frame from the botto: of the cabinet whereby a Wiring pocket is formed between said sections and the bottom of the cabinet, connectingr terminals associated with each of saidunits, insulating,r frames surrounding and inclosinpr a plurality of said units, whereby a bus-bar gutter is formed between said frames, bus- I bars mounted on said assembly frame` and within saidgutter, and means tor connecting theterminals of said sections with the bus-bars which means permits the removal of each `unit Without disturbing the connections to the other units and Without dis` placing the bus-bars.

2. A panel board comprising an assembly frame, a plurality 'of bus-bars mounted on said frame,'a plurality of panel board units each carrying electrical equipment for aplurality of circuits mounted on said frame, connecting terminals carried by each unit common to the equipment carried on Aeach of said units, means to connect saidterminals to the bus-bars, said means permitting the disconnection and removal of the units without affecting the connections of the other units and Without displacing the busbars.

3. The combination with acabinet, of a plurality of busbars stationarily mounted therein, a'plurality of panel board units carrying Vcircuit controlling apparatus for a plurality of circuits mounted in said cabinet, connecting terminals carried 4by each of said units common to the circuit controlling: apparatus carried by each of said units,

said busbars being supported independently ofsaid units, and means connecting the terminals of the units with the bus'- co-pending application.

barswhich permit the removal and disconf comprising insulating members mounted on the assembly frame and extending' at right" angles thereto, a plurality of ,panel-board units, each unit comprising a base carrying a plurality of bus-bars and electrical equipment connected with said bus-bars, the said units 'being mounted on said frame,

'branch circuit Wire openings, a plurality'ot bus-bars mounted on the assembly trame.,-

and means for connecting the bus-bars onz the units with the bus-bars'on the 'Frame, said means 'permitting the removal of each;- unit Without disconnectingY the remaining.L

units and without displacing' the bus-barsf 5. In a panel-board, a support, bus-bars mounted thereon, @plurality of panel units mounted on-said support, electrical equip ment for a plurality of -circuits carried by each of said units, said units being individu-4 ally removable independently of the bus` bars, and separable electrical terminalcnni nections common to the equipment of 'each uniti piel-connecting each' panel unit and the bus-bars. i

G. In' a panel board, the combination with an assembly frame, of a pair of insulating frames mounted upon said assembly trame, a buss-bar gutter formed between said frames, a plurality of panel-'board units carrying,r electrical equipment mounted on said assembly frame and within said insulating frames, terminal connectors carried by each unit, a; plurality of bus-bars mounted on said assembly frame, .in said bus-bar gutter, and means for-connecting the terminals'ot' each unit to the bus-bars, said means permitting the removal of each unit independently of the other units Without disturbing spacci.1v membeisformed of insulating material in-j terposed between the umts notched to form the connections o'i the other units` and Witti-` out displacing the bus-bars'- 7. In a panel-board. a support, a plurality of series of individually-removable panel units mounted on said support, electrical equipment for a plurality of circuits carried by each of said units, bus-bars mounted on the support, and ,separable electrical terminal connections common .to the equipment of each unit interconnecting each panel unit and thesaid bus-bars.

8. In a. panel-board, a support, a plural*- ity of seriesot` electrically-equipped individually-removable panel units carrying cir cuits controlling apparatus for a-plurality of circuits mounted on said support, busbars mounted' on the support and common to -all the units, and separable electrical terminal connections common to the circuit" lof series of units mounted on saidv bus-bars being positioned between each controlling apparatus of each unit interconnecting each panel unit and the said busbars.

9. In a panel-board, a support, n plurality of series of. electricallyequipped. individually-removable panel units mounted on said support, an insnlating :barrier Afor each series of units mounted on said support, busbars common to all the unitsof each pair pair of series of units, and separable connections between the electrical equipmenton eachsaid units and the seid bus-bars.

10.,In alpanel board, a. support, a plurality of series of,individually-removable panelunits mounted on said support, electrical equipment carried by each of said units, an insulating frame inelosing ench .serles of units, n bus-'bnr gutter formed by adjacent walls of Said frames, bus-bars conmon to seid units positioned in seid gutter and separable electrical connections between 'each panel unit land sind common bus-baie.

11. In a panel board, e support, a plurality of electrically-equipped individuallyn removable panel units mounted on said support., panel board sections each comprising one or more of said panel units, an insulating frame inelosing @zich sez/:tionj a bus-loer gutter formed by sidjneent walls of Suid frames, basfne common 'to eil the units and positioned in said gutter, amiseparable electrieal connections between each panel unit and theseid blisters.

12. In a panel iioerd, e support, e pluu rality of series of electrically-eqnipped inclividutlly-romovable panel units mounted on said support,- 'an insulating barrier for each seid support,

series of units mounted on the support, bus- 40 13. A nagel board 'com risin an `as' I P g sembly framejz, plurality `o units carrying electrical uipment mounted on said frame, panel -boaig more of sind panel* units, `an insulating frame inclosing each-'section, a', bus-bar gutter formed by'adja-cent-wa11s of said frames, bus-bars common to said uni ositioned in said gutter, connectingtexfminai) each unit, means to connect vsiiidierminals to. the bus-bars said means rmitting the disconnection and removal o a unit Without disturbin the connection of' the other units and wit out displacing the bus-bars.

14:. The combination with e cabinet, of a, plurality of panel board units mounted in said cabinet, panel .board sections each comprising an insulating frame inclosing leach section, a bus-bar gutter formed by adjacentvwalls of said frames, bus-bars common to said plurality of units positioned in said glitt r, connecting terminals carried by said units, and :means connecting the terminals of the units With nioval and disconnection of a unit Without distnrbingltlie connection of the other units and without displacin the bus-bars.

` In 'witnessV whereof scribed my nannaPV l HENRY F. STARRET s carried by' one or moreof Asaid panel units,-

the bushels which permit re'A have hereunto sub- 75 

